[jboss-jira] [JBoss JIRA] (JGRP-1985) Message: make initial size of headers configurable

[Dan Berindei (JIRA)]

    [ https://issues.jboss.org/browse/JGRP-1985?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13144803#comment-13144803 ] 

Dan Berindei commented on JGRP-1985:
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I didn't actually see header copying in my tests, I was just thinking of {{FRAG2}} because you mentioned fragmentation in the description. But WildFly always uses {{FORK}}, so a default of 4 should be better even without fragmentation.

> Message: make initial size of headers configurable
> --------------------------------------------------
>
>                 Key: JGRP-1985
>                 URL: https://issues.jboss.org/browse/JGRP-1985
>             Project: JGroups
>          Issue Type: Enhancement
>            Reporter: Bela Ban
>            Assignee: Bela Ban
>             Fix For: 3.6.7
>
>
> By default a message creates a {{Headers}} instance of 3. This is usually enough (transport, either {{NAKACK2}} or {{UNICAST3}}, and possibly fragmentation). However, if a message needs 4 or more headers, there's a resize which is an additional copy of 2 small arrays.
> Goal: make the initial headers size configurable.



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